New style and page requirements the website

[fengmk2]

Page requirements

• Homepage: introduce about the "Hu.js" and show "Buy tickets" big button.
• Schedule: schedule table of the conference, should display 3 days all in one page.
• Speakers: including listing of all speakers page and detail information of one person page.
• Sponsors: listing all sponsors's name and logo.
• Contact: contact information about the organizers.

I think we can refer nodeconf .

Color scheme

Green and blue should be ok.

[fengmk2]

@guille take a look.

[iwillwen]

I finsished the news system and pages system, but I'm still working for the style now. I will push it here when I think it's ok.